Window construction



April 26, 1938.

v E. DE NICOLAIS WINDOW CONSTRUCTION Original Filed Oct. 51, 1955 INVENTOR. Z'WwJZTZeJVZZOZQZI ATTORNEYS Patented Apr. 26, 1938 VVINDOW CONSTRUCTION Ernest De Nicolais, New York, N. Y.

Application October 31,1935, Serial No. 47,601

I 3 .Renewed August 14, 1937 1 Claim. (01. 20-12) 3. Thisinvention relates to an improved window construction of the sliding sash type, the broad object of which is to eliminate the necessity of sash weights, cords and pulleys, while at the same time making provision for the ready removal of the sashes from the window frame and the replacement of the sametherein.

' 'The invention comprehends, in a window construction of the indicated character, a frame in which one of a pair of vertical jambstrips between which the sashes are mounted for guided vertical: sliding movement is shiftable towards and away from the other to facilitate the removal-and replacement of the sashes without the neces'sity'of disturbing nails, screws or other similarfastening devices which areconsidered more or.

less permanent.

As a further feature the invention provides improved interengaging means on the jamb strips andsashes for selectively supporting the sashes in any one of a plurality of positions so as to dispense with sash weights, pulleys and sash cords.

The 'inventionfurther embodies means for locking one or both sashes in partially opened positions s'oas' to prevent anyone-from the outside entering through the window.

Other objects are to provide an improved win dow construction which is comparatively simple in its construction and mode of operation, inexpensive to produce, install and maintain in proper working condition and which is highly eflicient for its purpose.

With the above enumerated and other objects in view, reference is now made to the following specification and accompanying drawing in which there is disclosed a preferred embodiment of the invention, while the appended claim covers variations and modifications which fall within the scope of the invention.

In the drawing:

Fig. l is an inner front view of an improved window construction made up in accordance with the invention.

Fig. 2 is an enlarged fragmentary sectional view therethrough taken approximately on a plane indicated by the line 2-2 in Fig. 1.

Fig. 3 is a fragmentary sectional perspective view.

illustrating the sash supporting and locking means.

Referring to the drawing by characters of reference, A designates generally the window frame and B and C the upper and lower sashes which Fig. 4 is a fragmentary vertical sectional vieware mounted therein-for vertical guided sliding movement.

The frame includes a sill l8 and spaced opposite uprights H and I2 which are preferably fabricate-d of various strips to define channel shaped members. The upright l includes a fixed jamb strip l3 and a shiftable'jamb strip l4, each having a central parting strip or bead E5 to separate the upper and lower sashes and between which jamb strips lS'and Hi the sashes B and C 10 are located for guided vertical sliding movement. The -movable jamb strip i i is mounted and guided for lateral shifting towards and away from the fixed jamb strip E3 to admit of the ready removal and replacement of the sashes'in the wine dow frame without the necessity of having to remove screws, nails or other -'similarfastening elements which are of 'a more or less permanent nature as it will be apparent that retraction or outward lateral movement of the j'amb strip It will permit of the shifting of the sashes laterally to disengage the same from the guideways at one edge and then their complete removal from the window frame.

As illustrated, the jamb strip it is provided with guide pins l6 protruding laterally outward therefrom adjacent the upper and lower ends thereof which pins extend through bearin openings il in bearing elements It fixedly secured'within the V upright l2 and which, in the present instance,

are disclosed as metal straps fastened in place by any suitable means within the channel shaped upright 12.

In order to provide means for facilitating the shifting of the movable jamb strip M, a crankshaft 19 having an eccentric crank portion 20 is journaled at its opposite ends in the window frame with the forward end defining a socket ter minal 2| exposed at the inner side of the frame for receiving a removable key 22 to turn the 40 crankshaft. The movable jamb strip H5 is provided intermediate its ends with a lateral outwardly projecting thrust yoke or bail 23 with which the eccentric crank portion Zil is adapted to engage upon turning of the crankshaft in a I clock-wise direction for retracting or shifting the movable jamb strip laterally outward when removing and emplacing the sashes in the frame. The eccentric crank portion 29 is adapted to engage with the intermediate portion of the outer I surface of the movable jamb strip when the same is retracted and the crankshaft is turned in a counter clock-wise direction.

In order to limit the lateral inward movement of the jamb strip M, a hooked abutment 24 is provided on the lateral outward surface of the jamb strip 14 with which the eccentric crank portion 20 engages. I

Means is provided for selectively supporting the sashes in any one of a plurality of positions without using sash cords, sash weights or pulleys and said means consists of ratchet shaped teeth 25 formed on the lateral inner surfaces of the jamb strips l3 and I4 defining vertically spaced ledges 26 connected by upwardly inclining faces 21. The side styles '28 of the sashes A and B are provided adjacent their lower ends respectively with spring projected latch bars 29 which are normally urged laterally outwardinto engagement with the teeth 25 by springs:30. The latch bars have socketed inner ends 3|, which are disposed within the confines of the side'styles 28 of the sashes and which are adapted to receive removable pull knobs 32 for withdrawing the outer termin'als of the latch bars 29 from engagement with the teeth 25 when the sashes B and C are to be lowered. In order to facilitate the withdrawal of the latch bars and to provide means for raising and lowering the sashes, bail shaped handles 33 are secured to the side'styles 28 in overlying relation to the pull knobs 32. It

will be thus observed that by so locating the knobs 32 with reference tojthe handles, the operator may grasp the handles inthe palm of the hand and with the thumb and third and fourth fingers, while the index and second fingers may engage around the pull knobs; In raising the sashes it is not essential to retractthe latches as the same 7 I will ratchet over the upwardly inclined faces 21 35 r of the teeth.

In order to, make provision for locking one or both ofthesashes in partially opened position, so

as to prevent a person'from the outside entering through the window, the jamb strip is provided with keeper openings 34 in the inclined faces 21 immediatelyabove the ledges 26'into which the latch bars 29 are projected by the springs 30. It will, however, be obvious that when the latch bars 29 are disengaged from the lowermost keeper opening, it will not be necessary to hold the latch bars retracted as the rapid upward movement of the sash will cause the latch bar terminals to clear the keeper openings. before they have an opportunity to enter the same. When it is desired to lock the sashes in partially opened condition, the pull knobs 32 are prefer ably disengaged from the socketed terminals-3| of the latch bars 29 and as shown, the connection is in the form of a swivelled screw 35 extending through the knob and having an exposed knurled head 36 for effecting the connection and disconnection thereof.

In order to set up a frictional resistance to the movement of the sashes in the frame and to insure a snug fit thereof and prevent rattling the sashes may be provided with a leaf spring '40 which is secured to the side edge of each sash'to exert a lateral pressure against the inner walls of the frame guide.

What is claimed is:

A window structure including a'frame having channel-shaped uprights and vertical jamb strips strips laterally towards and away from the other to permit of the removal and replacementiof the sashes,'said means including guide pins project'- ing laterally outward from the movable jamb strip adjacent the upper and lower ends'thereof;

vertically spaced cross straps located within and secured at their opposite ends to the opposite sides'of one of the channelshaped uprightssaid cross straps having guide bearing openings through which the guide pins extend, and means I V V for shifting said movable jamb strip includingia thrust yoke projecting laterally outward from' said movable jamb strip and a crankshaft jour-; naled in theopposite sides of said channel-shaped upright and having a crank portion engageable respectively with the yoke and the jamb strip for position, and an abutment on said jamb strip with which the crank portion engages to retain the movable jamb strip in sash retaining position.

ERNEST on nrconsrs.

40 fting the same from and to sash retaini 

